/*
 * LensKit, an open-source toolkit for recommender systems.
 * Copyright 2014-2017 LensKit contributors (see CONTRIBUTORS.md)
 * Copyright 2010-2014 Regents of the University of Minnesota
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
package org.lenskit.gradle.delegates

import org.junit.Before
import org.junit.Test

import static org.hamcrest.Matchers.*
import static org.junit.Assert.assertThat

class EvalTaskDelegateTest {
    EvalTaskConfig cfg

    @Before
    void setupSpec() {
        cfg = new EvalTaskConfig(null, 'predict')
    }

    @Test
    void testBasicProp() {
        cfg.configure {
            outputFile 'predictions.csv'
        }
        assertThat cfg.outputFile, equalTo('predictions.csv')
    }

    @Test
    void testAddMetric() {
        cfg.configure {
            metric 'rmse'
        }
        assertThat cfg.metrics, hasSize(1)
        assertThat cfg.metrics, contains('rmse')
    }

    @Test
    void testAddMetricBlock() {
        cfg.configure {
            metric('ndcg') {
                columnName 'foobar'
            }
        }
        assertThat cfg.metrics, hasSize(1)
        def obj = cfg.metrics[0]
        assertThat obj.type, equalTo('ndcg')
        assertThat obj.columnName, equalTo('foobar')
    }
}
